“Isis, the powerful jihadist group pushing toward Baghdad, is waging a parallel war online, flooding social media with updates and riding the football World Cup frenzy to spread its message with corporate-like sophistication.

“As militants, led by jihadists from Isis, advanced on the ground in Iraq, they also invaded microblogging site Twitter, where users posted a near-constant stream of updates and photos.

“Isis puts “not just other insurgent groups to shame, but even legitimate companies that are trying to sell products online,” said Aaron Zelin of the Washington Institute for Near East Policy said.”